{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08539_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Galveston, Texas | 1950 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"60"},{"label":"placed","value":"46"},{"label":"unplaced","value":"14"},{"label":"fit sources","value":"georef 30, georef-snap 15, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 17 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 29.28842,-94.81443 +/-1916m); p111 (tier 4, 29.28842,-94.81443 +/-1916m); p112__2 (tier 1, 29.29129,-94.82707 +/-211m); p115__1 (tier 1, 29.29261,-94.82256 +/-210m); p115__2 (tier 1, 29.29029,-94.82080 +/-148m); p115__3 (tier 1, 29.29254,-94.82875 +/-164m); p117 (tier 4, 29.28842,-94.81443 +/-1916m); p71 (tier 2, 29.29222,-94.80551 +/-100m); p73 (tier 2, 29.28874,-94.80235 +/-100m); p79 (tier 1, 29.28210,-94.80772 +/-258m); p85__1 (tier 2, 29.29308,-94.81086 +/-228m); p94 (tier 1, 29.28120,-94.81120 +/-260m); p95 (tier 2, 29.28708,-94.81232 +/-595m); p99__1 (tier 1, 29.28495,-94.79647 +/-220m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0100/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p100","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0100/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0100/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4678.0,7193.2 -0.0,7189.6 -0.0,770.4 1918.7,755.8 1917.9,560.5 3126.6,567.9 3129.1,822.7 4728.4,804.1 4730.1,1755.9 5827.2,1749.7 5828.5,2773.0 5692.2,2774.1 5693.8,3877.2 5830.0,3877.0 5834.6,7185.4 4856.8,7195.2 4857.4,6950.8 4679.2,6949.9 4678.0,7193.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0100/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81810958124834,29.297915155930568]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81606554432476,29.29187915457721]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82399541735558,29.289807737058258]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82603945427915,29.295843738411616]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0101/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p101","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"15"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0101/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0101/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4145.4,7680.0 -0.0,7680.0 -0.0,0.0 1478.6,-0.0 1479.4,410.9 6293.9,424.4 6283.1,3988.9 6480.1,3990.3 6490.2,7033.7 4152.1,7224.7 4145.4,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0101/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3296.0,424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.825,29.294373]}},{"type":"Feature","properties":{"resourceCoords":[6264.0,424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8241088,29.2917592]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0102/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p102","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0102/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0102/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6370.8,7680.0 -0.0,7680.0 -0.0,0.0 367.1,-0.0 368.4,503.6 6656.0,458.4 6656.0,7278.0 6368.7,7280.0 6370.8,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0102/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82384865766208,29.2917972725138]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82287327725734,29.288863652537593]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82672720728341,29.28787516802545]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82770258768815,29.29080878800166]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0103/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p103","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0103/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0103/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6547.0,5808.2 5792.0,6123.4 5818.6,7275.1 -0.0,7279.7 -0.0,4990.3 283.0,4988.5 283.3,393.6 4271.6,390.4 4270.9,-0.0 5856.7,-0.0 5820.4,5033.6 6547.0,5808.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0103/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81674416710801,29.29265667057064]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81576876573456,29.289791331097067]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81958810573599,29.28878836584875]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82056350710944,29.29165370532232]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0104/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p104","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0104/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0104/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7337.6 -0.0,6177.9 717.9,5872.6 -0.0,5117.1 -0.0,0.0 5961.4,-0.0 5961.5,441.2 6307.7,440.2 6314.8,852.5 6656.0,851.1 6656.0,6260.8 6366.3,6264.5 6372.0,7300.8 -0.0,7337.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0104/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81582807190692,29.290110168529775]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81485199636431,29.287187040921133]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81869214723427,29.28619785316508]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81966822277688,29.289120980773724]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0105/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p105","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0105/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0105/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6560.0,850.2 6560.0,6799.5 6223.6,6802.0 6223.3,7242.9 -0.0,7271.7 -0.0,828.8 259.7,828.1 260.5,408.1 2435.4,398.5 2435.9,-0.0 3889.6,-0.0 3894.8,379.7 6170.7,374.9 6177.2,848.8 6560.0,850.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0105/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81435830525206,29.28569504470814]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81339087440182,29.282814844475723]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81722992073351,29.281820048496254]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81819735158375,29.284700248728672]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0106/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p106","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0106/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0106/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 6284.7,0.0 6284.0,7251.6 2301.4,7239.7 2297.8,7680.0 593.0,7680.0 597.9,7234.5 555.9,7234.4 291.7,7233.7 297.7,6883.6 0.0,6880.3 0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0106/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82032896594824,29.280052529259528]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82133615053668,29.282972774274064]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81750009898056,29.283993572110752]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81649291439211,29.281073327096216]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0107/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p107","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0107/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0107/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"305.7,7680.0 307.8,7327.9 -0.0,7330.4 -0.0,923.2 217.0,923.2 221.4,438.5 2506.6,420.4 2506.6,-0.0 4191.0,-0.0 4193.8,406.8 6205.0,390.8 6276.3,4962.0 6560.0,4958.1 6560.0,7292.6 6280.1,7295.7 6281.1,7680.0 305.7,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0107/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81315299342043,29.28221068644379]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81220116960894,29.279339223433436]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81602828922895,29.27836040415156]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81698011304044,29.281231867161914]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p108 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3340.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3271.3,6809.7 3340.0,6809.8 3340.0,-0.0 2451.1,-0.0 2450.4,371.1 2280.2,369.4 2276.6,1513.7 2433.2,1514.5 2443.9,3795.7 1287.5,3791.2 1288.2,4024.1 289.4,4028.8 310.1,6054.8 451.7,6054.6 442.5,7212.3 3272.6,7213.5 3271.3,6809.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1768.0,6056.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.814275,29.277556]}},{"type":"Feature","properties":{"resourceCoords":[2708.0,1516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8094394,29.2779324]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p108 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"3340.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3316.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6656.0,-0.0 6409.6,-0.0 6411.5,399.9 3473.5,403.6 3473.2,489.2 3472.8,592.4 3340.0,591.1 3340.0,7680.0 6656.0,7680.0 6656.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0108__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4019.2,2092.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.817421,29.277602]}},{"type":"Feature","properties":{"resourceCoords":[5857.0,2092.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.816862,29.275977]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0109/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p109","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0109/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0109/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.1,7261.6 14.5,423.1 6560.0,352.3 6560.0,1303.7 6002.6,1302.8 5914.8,4772.2 6079.3,7680.0 4426.2,7680.0 4422.7,7229.2 111.1,7261.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0109/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3012.0,4952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8221636,29.289706]}},{"type":"Feature","properties":{"resourceCoords":[5968.0,3964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8212449,29.2885368]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0110/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p110","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"11"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0110/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0110/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6656.0,7294.7 2411.9,7265.3 2408.2,7680.0 445.6,7680.0 451.3,7243.8 -0.0,7235.6 -0.0,4088.3 458.0,4096.4 461.4,2807.9 402.5,2663.3 476.0,956.0 750.4,961.3 758.7,492.9 3422.3,510.3 3424.0,-0.0 5253.8,-0.0 5250.0,523.7 6357.1,530.1 6357.2,4106.3 6656.0,4107.5 6656.0,7294.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0110/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[476.0,956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8199057,29.2888541]}},{"type":"Feature","properties":{"resourceCoords":[1944.0,500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8189904,29.2876801]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0112__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p112 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4581.2"},{"label":"split_canvas_w","value":"6656.0"},{"label":"split_canvas_h","value":"3098.8"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0112__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0112/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6389.9,4581.7 1680.3,4591.1 1594.1,5489.8 -0.0,5359.8 0.0,6636.0 -0.0,7680.0 6146.4,7680.0 6389.9,4581.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0112__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,4581.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.83192911728344,29.292555307287355]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,4581.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.83066421029521,29.28971542951475]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.83218260627356,29.289202249237807]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.83344751326179,29.29204212701041]}},{"type":"Feature","properties":{"resourceCoords":[5928.0,4989.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8310024,29.2899585]}},{"type":"Feature","properties":{"resourceCoords":[5928.0,4989.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8309081,29.2897782]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p113 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3825.6"},{"label":"split_canvas_w","value":"6560.0"},{"label":"split_canvas_h","value":"3854.4"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6204.1,7603.3 6560.0,7624.7 6560.0,3857.2 1564.4,3833.1 1566.5,4105.0 1250.4,4105.3 759.6,4105.9 282.4,4106.4 284.4,6340.7 -0.0,6345.7 -0.0,7403.6 294.8,7404.1 362.6,7680.0 5824.3,7680.0 5939.4,7478.0 6204.1,7603.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4192.0,7436.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.827027,29.278468]}},{"type":"Feature","properties":{"resourceCoords":[4192.0,5213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.824755,29.279055]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p113 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6560.0"},{"label":"split_canvas_h","value":"3857.2"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6031.6,3695.6 6036.0,2624.8 6323.6,2620.9 6330.8,359.4 3363.4,350.6 3361.3,767.5 1388.5,775.3 1392.4,336.7 938.7,330.3 937.4,-0.0 551.4,-0.0 549.4,324.6 -0.0,322.1 -0.0,3701.6 6031.6,3695.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0113__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4892.0,2620.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8275241,29.2834987]}},{"type":"Feature","properties":{"resourceCoords":[4012.0,2620.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.827791,29.284273]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p114 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6656.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"424.2,7680.0 611.7,6270.3 1482.5,6386.1 1617.5,7201.4 3043.7,7190.2 3001.1,3157.0 6198.5,3137.1 6207.7,545.3 1591.0,573.9 1542.2,0.0 0.0,-0.0 -0.0,7680.0 424.2,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6356.0,544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.827496,29.2906742]}},{"type":"Feature","properties":{"resourceCoords":[4112.0,7184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.827791,29.284273]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p114 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3400.8"},{"label":"split_canvas_y","value":"4004.0"},{"label":"split_canvas_w","value":"3255.2"},{"label":"split_canvas_h","value":"3676.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6047.3,6934.7 6246.4,6908.6 5937.5,4596.5 4522.7,4796.0 4284.3,4015.1 3402.4,4019.2 3401.6,5992.0 3400.8,7680.0 6067.0,7680.0 5977.1,7014.7 6047.3,6934.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0114__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4628.5,5676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.830044,29.2828343]}},{"type":"Feature","properties":{"resourceCoords":[4524.5,4796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.830294,29.283613]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0116/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p116","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0116/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0116/info.json","type":"ImageService2","height":7680,"width":6616},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,3075.8 296.3,3165.8 1094.4,560.0 5998.1,1350.5 6149.9,1161.9 6616.0,1403.3 6616.0,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0116/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82820637576438,29.282333256092343]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.82526263121855,29.276976737032307]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.83234128227282,29.273975061692553]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.83528502681865,29.27933158075259]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p68","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0068/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0068/info.json","type":"ImageService2","height":7680,"width":6524},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6234.6,60.2 6267.8,7188.4 4273.4,7201.6 4272.4,6792.3 2305.6,6787.4 2307.8,7193.9 2310.7,7680.0 -0.0,7680.0 -0.0,0.0 6524.0,-0.0 6234.6,60.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2296.0,4968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8070328,29.3000675]}},{"type":"Feature","properties":{"resourceCoords":[4268.0,4968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8067339,29.2991897]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p69","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0069/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0069/info.json","type":"ImageService2","height":7680,"width":6600},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6600.0,-0.0 6600.0,7249.8 245.6,7233.0 236.3,-0.0 6600.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0069/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2224.0,444.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8038539,29.2980335]}},{"type":"Feature","properties":{"resourceCoords":[2224.0,7232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8072646,29.2971391]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p70","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0070/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0070/info.json","type":"ImageService2","height":7680,"width":6592},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5997.1,7680.0 4000.6,7680.0 3997.9,7282.8 -0.0,7248.4 -0.0,0.0 6592.0,-0.0 6592.0,6929.7 5995.8,6929.5 5997.1,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0070/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[48.0,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8043202,29.2957834]}},{"type":"Feature","properties":{"resourceCoords":[52.0,7264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8066009,29.2951847]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0072/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0072/info.json","type":"ImageService2","height":7680,"width":6592},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4274.4,5047.6 264.2,5076.9 218.8,280.3 3190.4,3.7 6592.0,-0.0 6592.0,6787.7 4268.9,6806.2 4274.4,5047.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0072/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.79972846867571,29.286688132370198]}},{"type":"Feature","properties":{"resourceCoords":[6592.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.79877286739709,29.283804655591847]}},{"type":"Feature","properties":{"resourceCoords":[6592.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80259741535863,29.282826740583204]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80355301663725,29.28571021736155]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0074/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0074/info.json","type":"ImageService2","height":7680,"width":6592},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"321.6,7680.0 324.3,7047.4 -0.0,7043.2 -0.0,0.0 6221.5,-0.0 6276.5,440.3 4302.1,442.5 4291.3,5050.7 6287.2,5049.9 6297.8,7680.0 321.6,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0074/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80063502927061,29.289342548341942]}},{"type":"Feature","properties":{"resourceCoords":[6592.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.79965308022399,29.286453244364893]}},{"type":"Feature","properties":{"resourceCoords":[6592.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80348542417285,29.285448383919654]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80446737321947,29.288337687896703]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p75","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0075/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0075/info.json","type":"ImageService2","height":7680,"width":6600},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6236.5,909.5 6292.4,6833.3 1992.9,6858.3 1997.7,7680.0 -0.0,7680.0 -0.0,0.0 3896.7,-0.0 3896.8,909.7 6236.5,909.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[384.0,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.810199,29.30204]}},{"type":"Feature","properties":{"resourceCoords":[6272.0,4984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.810463,29.299155]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p76","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0076/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0076/info.json","type":"ImageService2","height":7680,"width":6620},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6278.0,7153.1 2348.6,7162.5 2349.2,7035.0 2349.0,6753.4 378.7,6769.6 301.7,-0.0 2276.4,-0.0 2278.4,411.0 6238.2,380.3 6278.0,7153.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0076/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[352.0,4936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.810463,29.299155]}},{"type":"Feature","properties":{"resourceCoords":[6248.0,2656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8084208,29.2968376]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p77","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0077/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0077/info.json","type":"ImageService2","height":7680,"width":6600},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6600.0,7291.0 3473.9,7285.0 3475.3,7680.0 3082.0,7680.0 3081.0,7284.2 366.4,7278.1 363.1,432.5 6600.0,433.4 6600.0,7291.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0077/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2360.0,5004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8092606,29.2956625]}},{"type":"Feature","properties":{"resourceCoords":[2360.0,440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8069672,29.2962629]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p78","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0078/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0078/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.2,7254.0 124.1,346.7 4292.1,-0.0 6636.0,-0.0 6613.6,6907.2 4278.7,7266.3 94.2,7254.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0078/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80618211101624,29.294502426387147]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80518425796785,29.291608059316683]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80899819525787,29.290593782884418]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80999604830626,29.293488149954882]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p80","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0080/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0080/info.json","type":"ImageService2","height":7680,"width":6596},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6596.0,0.0 6279.0,7292.6 4314.1,7446.2 4357.7,7680.0 0.0,7680.0 405.4,316.2 2372.8,0.0 6596.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0080/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80289703425824,29.28365709482349]}},{"type":"Feature","properties":{"resourceCoords":[6596.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.8039102939133,29.286554228442874]}},{"type":"Feature","properties":{"resourceCoords":[6596.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80006999419196,29.28759052797458]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.79905673453689,29.284693394355195]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p81","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0081/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0081/info.json","type":"ImageService2","height":7680,"width":6584},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2718.5,7680.0 2713.1,7453.8 -0.0,7500.3 -0.0,0.0 6402.5,-0.0 6410.6,655.4 6584.0,653.1 6584.0,7680.0 2718.5,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2344.0,5072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.807113,29.2893867]}},{"type":"Feature","properties":{"resourceCoords":[2344.0,416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8048596,29.2899419]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p82","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"5"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0082/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0082/info.json","type":"ImageService2","height":7680,"width":6648},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7190.7 -0.0,915.1 615.1,910.9 616.6,494.7 2549.2,533.0 2553.1,-0.0 6648.0,-0.0 6648.0,7190.2 -0.0,7190.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0082/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4500.0,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.803592,29.282723]}},{"type":"Feature","properties":{"resourceCoords":[4500.0,4388.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.804451,29.2825]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p83","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0083/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0083/info.json","type":"ImageService2","height":7680,"width":6584},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6260.7,7244.9 4328.0,7260.0 4325.0,7680.0 -0.0,7680.0 -0.0,0.0 6317.6,-0.0 6260.7,7244.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6308.0,2700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8124422,29.2976792]}},{"type":"Feature","properties":{"resourceCoords":[4328.0,7260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.815026,29.29794]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p84","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0084/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0084/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6320.0,7248.0 3915.1,7194.6 3914.1,7680.0 1947.7,7680.0 1949.7,7237.7 1951.7,6789.6 -0.0,6798.9 -0.0,406.2 6636.0,439.9 6636.0,7680.0 6320.0,7680.0 6320.0,7248.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0084/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6320.0,2708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8114875,29.2948838]}},{"type":"Feature","properties":{"resourceCoords":[6320.0,7248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8137728,29.2942804]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0085__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p85 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6584.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0085__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0085/info.json","type":"ImageService2","height":7680,"width":6584},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5690.8,7269.7 5685.4,7680.0 6584.0,7680.0 6584.0,2708.2 5328.0,2704.0 5327.9,394.4 -0.0,364.7 0.0,3308.0 2360.0,3359.6 2328.4,7680.0 3357.3,7680.0 3368.1,7234.9 5328.0,7264.0 5690.8,7269.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0085__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5328.0,7264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.812868,29.29165]}},{"type":"Feature","properties":{"resourceCoords":[5328.0,2704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8105975,29.2922517]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p86","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0086/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0086/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6294.3,7680.0 -0.0,7680.0 -0.0,2622.6 395.8,2632.2 413.5,336.8 2730.7,367.8 2738.1,-0.0 4044.7,-0.0 4035.5,382.6 6636.0,401.9 6636.0,6824.0 6299.9,6819.8 6294.3,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0086/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80904223398552,29.291902915489143]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80801350063697,29.289001146171664]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81186877013825,29.287964046144555]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.8128975034868,29.290865815462034]}},{"type":"Feature","properties":{"resourceCoords":[6320.0,2672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8094038,29.2887785]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0087/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p87","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0087/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0087/info.json","type":"ImageService2","height":7680,"width":6584},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3858.4,7680.0 3501.6,7680.0 2261.3,7253.9 326.7,2649.7 324.9,372.8 6584.0,402.9 6584.0,4977.9 3858.4,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0087/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80731304588899,29.294217732991335]}},{"type":"Feature","properties":{"resourceCoords":[6584.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80630833866927,29.29132425200363]}},{"type":"Feature","properties":{"resourceCoords":[6584.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81015106244182,29.290294900306954]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81115576966154,29.29318838129466]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p88","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0088/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0088/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,2726.4 315.8,2734.0 320.8,402.4 6636.0,473.5 6636.0,7680.0 4241.8,7680.0 4245.4,7263.9 0.0,7319.2 0.0,2726.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0088/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81319105703402,29.28099096766659]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.8142078005463,29.28387208917451]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81041150749319,29.284905618822965]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.8093947639809,29.282024497315046]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0089/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p89","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0089/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0089/info.json","type":"ImageService2","height":7680,"width":6584},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6280.0,7248.0 6048.8,7245.0 5278.5,7235.8 4332.8,7239.9 3339.3,7244.1 2485.3,7251.6 391.5,7319.4 390.9,6911.5 -0.0,6914.0 -0.0,0.0 1719.0,-0.0 1717.6,449.8 6280.1,463.2 6280.0,7248.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0089/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6280.0,2680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8070076,29.2818296]}},{"type":"Feature","properties":{"resourceCoords":[6280.0,7248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8093184,29.2812231]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p90","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0090/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0090/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"362.8,7280.8 357.0,442.0 2528.4,438.0 2529.3,-0.0 4309.6,-0.0 4309.0,434.8 6529.5,430.9 6636.0,7259.3 362.8,7280.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0090/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80571772225777,29.282339364907838]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80472546792116,29.27941323637163]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.8085807848923,29.278404527128536]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80957303922891,29.281330655664743]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p91","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0091/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0091/info.json","type":"ImageService2","height":7680,"width":6584},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6584.0,7276.4 6584.0,7680.0 -0.0,7680.0 -0.0,834.2 4264.1,835.8 4267.3,414.5 6206.1,400.1 6260.0,7272.0 6584.0,7276.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0091/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6260.0,2696.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8158626,29.2967711]}},{"type":"Feature","properties":{"resourceCoords":[6260.0,7272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8181462,29.2961663]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p92","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0092/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0092/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3110.5,7680.0 3109.4,7165.0 336.0,7116.0 305.3,-0.0 2318.9,-0.0 2310.7,878.0 4249.7,887.3 4252.9,408.6 6624.0,472.6 6636.0,7192.1 6364.4,7189.6 6361.5,7680.0 3110.5,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0092/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6192.0,7188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8172636,29.293553]}},{"type":"Feature","properties":{"resourceCoords":[336.0,7116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8181462,29.2961663]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p93 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6576.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093/info.json","type":"ImageService2","height":7680,"width":6576},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6303.5,6798.6 6576.0,6796.7 6576.0,413.0 4296.7,408.6 4291.8,845.5 2262.4,872.1 2264.8,2683.2 312.5,2683.2 373.7,7225.5 6308.1,7180.9 6303.5,6798.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[340.0,4952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8160482,29.2936784]}},{"type":"Feature","properties":{"resourceCoords":[6220.0,412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.812868,29.29165]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p93 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2264.8"},{"label":"split_canvas_h","value":"2683.2"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093/info.json","type":"ImageService2","height":7680,"width":6576},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2193.6,318.6 -0.0,311.2 -0.0,2683.2 2192.7,2683.2 2193.6,318.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0093__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[232.1,311.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8172014,29.2933709]}},{"type":"Feature","properties":{"resourceCoords":[232.1,2495.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.818336,29.2930726]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0096/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p96","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0096/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0096/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4370.3,7680.0 2392.3,7680.0 -0.0,6845.0 -0.0,0.0 1970.6,-0.0 6636.0,799.2 6636.0,3911.1 6636.0,7182.5 4370.3,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0096/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81035475335652,29.284920348152742]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.80938162560493,29.281985027331395]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.81324931963331,29.280995829834904]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.8142224473849,29.28393115065625]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0097/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p97","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0097/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0097/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6560.0,7256.0 4373.3,7260.2 4373.0,7680.0 355.0,7680.0 348.0,7268.0 -0.0,7267.5 -0.0,870.3 338.3,866.1 333.7,-0.0 6560.0,-0.0 6560.0,7256.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0097/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[348.0,7268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8151232,29.2872833]}},{"type":"Feature","properties":{"resourceCoords":[348.0,2704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8128398,29.2878721]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0098/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p98","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0098/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0098/info.json","type":"ImageService2","height":7680,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4349.1,7680.0 2374.5,7680.0 2382.8,7202.9 399.1,7186.0 401.4,6787.2 -0.0,6780.6 -0.0,417.7 6344.2,463.5 6326.5,2725.9 6636.0,2729.0 6636.0,7239.1 4349.8,7219.6 4349.1,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0098/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5328.0,2716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.8097175,29.2787516]}},{"type":"Feature","properties":{"resourceCoords":[5328.0,7228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.812002,29.2781399]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0099__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galveston, Texas | 1950 | sanborn08539_007 p99 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3499.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3060.8"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-22T06:36:15Z","modified":"2026-09-22T06:36:15Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0099__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0099/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5846.4,7680.0 6560.0,7680.0 6560.0,-0.0 3533.6,0.0 3500.4,0.0 3500.3,354.5 3522.7,7277.6 5765.0,7352.0 5846.4,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034gm:g4034gm_g08539195002:08539_02_1950-0099__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3671.0,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.80301,29.280976]}},{"type":"Feature","properties":{"resourceCoords":[5261.4,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.802747,29.2802895]}}]}}]}